GoldCast · Sunset Timing Guide

Best Time to Watch the Sunset

Most people leave too early. The peak colour window is 5–20 minutes after the sun disappears below the horizon — and the exact times change every day depending on where you are.

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The sunset window most people miss

Three Phases, One Peak

Sunset isn't a single moment — it's a sequence of light phases that unfold over 30 to 90 minutes depending on your latitude and the season. Each phase looks different, and the most dramatic one usually comes last.

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Golden Hour: 60 Min Before Sunset

Light turns warm and directional as the sun drops below 10 degrees above the horizon. Shadows lengthen, colour saturates, and everything at ground level takes on a warm glow. This is golden hour — the window photographers plan around. Duration varies from 20 minutes near the equator to over 90 minutes at high latitudes in winter. GoldCast shows the exact window for your location.

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Sunset: The Disc Hits the Horizon

The moment most people think of as "the sunset." The disc is large, orange, and visible. This is actually not the most photogenic moment for sky colour — the best is still coming. The sky directly above and around the sun is already showing colour, but the peak hasn't arrived yet. Stay.

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Post-Sunset Peak: 5–20 Minutes After

Once the sun is below the horizon it illuminates cloud from underneath at an even lower angle than before. This is when sky colour peaks — vivid oranges, pinks, and reds spread across cloud that was backlit moments earlier. Most people miss this entirely by leaving when the disc disappears. The show is just starting.

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Blue Hour: 20–40 Minutes After Sunset

As post-sunset colour fades, the sky transitions to deep blue — the period between sunset and full dark. Blue hour produces even, cool light ideal for cityscapes, long exposures, and scenes where you want ambient sky detail without direct sunlight. GoldCast marks the blue hour window separately from golden hour.

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GoldCast Push Alerts

Get notified when tonight looks exceptional at your location. GoldCast monitors cloud conditions and scores sunset quality daily — sending a push alert when the forecast suggests a strong show. Exclusive to the iOS app.

Common Questions

What is the best time to watch the sunset?

Arrive during golden hour (30–60 min before sunset) and stay until 15–20 minutes after the disc disappears. The post-sunset peak is when sky colour is most intense. GoldCast shows exact timing for your location — free on web or in the iOS app.

Is the best colour before or after sunset?

After. The 5–20 minutes after the sun goes below the horizon is typically when sky colour peaks — the sun illuminates cloud from below the horizon at the lowest possible angle. Most people leave when the disc disappears and miss the best part.

What time does golden hour start?

Golden hour starts when the sun is about 10 degrees above the horizon — roughly 30 to 60 minutes before sunset depending on season and latitude. Duration varies significantly: 20–30 minutes near the equator, 60–90+ minutes at high latitudes in winter. GoldCast calculates the exact start and end for your location and date.

What is blue hour?

Blue hour is the 20–40 minutes after sunset when the sky transitions from warm post-sunset colour to deep blue before full dark. Ideal for cityscapes and long exposures where you want ambient sky detail. GoldCast marks the blue hour window alongside golden hour timing.

What is LightCast GoldCast?

GoldCast scores sunset and golden hour quality using cloud altitude, horizon clarity, and humidity, and calculates exact golden hour and blue hour timing for any location. Push alerts notify you when tonight looks strong. Free on web at lightcastsuite.com/goldcast, alerts in the LightCast iOS app. $2.99/month after a 7-day free trial.